# Converting pixel buffers Convert pixel buffer data between different bit-depths. ## Topics ### Conversion from YUV to RGB [`func convert(lumaSource: vImage.PixelBuffer, chromaSource: vImage.PixelBuffer, conversionInfo: vImage_YpCbCrToARGB)`](/documentation/Accelerate/vImage/PixelBuffer/convert(lumaSource:chromaSource:conversionInfo:)) Populates the pixel buffer with ARGB data from the given luminance and chrominance pixel buffers. ### Conversion from 8-bit to 16-bit [`func convert(to: vImage.PixelBuffer)`](/documentation/Accelerate/vImage/PixelBuffer/convert(to:)-3wpdu) Converts the contents of the 8-bit planar pixel buffer to floating-point 16-bit planar format. [`func convert(to: vImage.PixelBuffer)`](/documentation/Accelerate/vImage/PixelBuffer/convert(to:)-4v16) Converts the contents of the 8-bit-per-channel, 2-channel interleaved pixel buffer to floating-point 16-bit-per-channel format. [`func convert(to: vImage.PixelBuffer)`](/documentation/Accelerate/vImage/PixelBuffer/convert(to:)-9j6eu) Converts the contents of the 8-bit-per-channel, 4-channel interleaved pixel buffer to unsigned 16-bit-per-channel format. [`func convert(to: vImage.PixelBuffer)`](/documentation/Accelerate/vImage/PixelBuffer/convert(to:)-6ci2d) Converts the contents of the 8-bit-per-channel, 4-channel interleaved pixel buffer to floating-point 16-bit-per-channel format. ### Conversion from 8-bit to 32-bit [`func convert(to: vImage.PixelBuffer)`](/documentation/Accelerate/vImage/PixelBuffer/convert(to:)-7src4) Converts the contents of the 8-bit planar pixel buffer to 32-bit planar format. [`func convert(to: vImage.PixelBuffer)`](/documentation/Accelerate/vImage/PixelBuffer/convert(to:)-8hivu) Converts the contents of the 8-bit-per-channel, 3-channel interleaved pixel buffer to 32-bit-per-channel format. [`func convert(to: vImage.PixelBuffer)`](/documentation/Accelerate/vImage/PixelBuffer/convert(to:)-1e0nd) Converts the contents of the 8-bit-per-channel, 4-channel interleaved pixel buffer to 32-bit-per-channel format. ### Conversion from 16-bit to 8-bit [`func convert(to: vImage.PixelBuffer)`](/documentation/Accelerate/vImage/PixelBuffer/convert(to:)-449hx) Converts the contents of the floating-point 16-bit planar pixel buffer to 8-bit planar format. [`func convert(to: vImage.PixelBuffer)`](/documentation/Accelerate/vImage/PixelBuffer/convert(to:)-1h96t) Converts the contents of the floating-point 16-bit-per-channel, 2-channel interleaved pixel buffer to 8-bit-per-channel format. [`func convert(to: vImage.PixelBuffer)`](/documentation/Accelerate/vImage/PixelBuffer/convert(to:)-k50a) Converts the contents of the unsigned 16-bit-per-channel, 4-channel interleaved pixel buffer to 8-bit-per-channel format. [`func convert(to: vImage.PixelBuffer)`](/documentation/Accelerate/vImage/PixelBuffer/convert(to:)-9xnxc) Converts the contents of the floating-point 16-bit-per-channel, 4-channel interleaved pixel buffer to 8-bit-per-channel format. ### Conversion between 16-bit formats [`func convert(to: vImage.PixelBuffer)`](/documentation/Accelerate/vImage/PixelBuffer/convert(to:)-1zk6k) Converts the contents of the unsigned 16-bit planar pixel buffer to floating-point 16-bit planar format. [`func convert(to: vImage.PixelBuffer)`](/documentation/Accelerate/vImage/PixelBuffer/convert(to:)-ip9z) Converts the contents of the floating-point 16-bit planar pixel buffer to unsigned 16-bit planar format. [`func convert(to: vImage.PixelBuffer)`](/documentation/Accelerate/vImage/PixelBuffer/convert(to:)-7dx2c) Converts the contents of the floating-point 16-bit-per-channel, 2-channel interleaved pixel buffer to unsigned 16-bit-per-channel format. [`func convert(to: vImage.PixelBuffer)`](/documentation/Accelerate/vImage/PixelBuffer/convert(to:)-7tdb1) Converts the contents of the unsigned 16-bit-per-channel, 4-channel interleaved pixel buffer to floating-point 16-bit-per-channel format. [`func convert(to: vImage.PixelBuffer)`](/documentation/Accelerate/vImage/PixelBuffer/convert(to:)-3lg9p) Converts the contents of the floating-point 16-bit-per-channel, 4-channel interleaved pixel buffer to unsigned 16-bit-per-channel format. [`func convert(to: vImage.PixelBuffer)`](/documentation/Accelerate/vImage/PixelBuffer/convert(to:)-8u16v) Converts the contents of the unsigned 16-bit-per-channel, 2-channel interleaved pixel buffer to floating-point 16-bit-per-channel format. ### Conversion from 16-bit to 32-bit [`func convert(to: vImage.PixelBuffer)`](/documentation/Accelerate/vImage/PixelBuffer/convert(to:)-4876v) Converts the contents of the floating-point 16-bit planar pixel buffer to 32-bit planar format. [`func convert(to: vImage.PixelBuffer)`](/documentation/Accelerate/vImage/PixelBuffer/convert(to:)-1xpk2) Converts the contents of the floating-point 16-bit-per-channel, 2-channel interleaved pixel buffer to 32-bit-per-channel format. [`func convert(to: vImage.PixelBuffer)`](/documentation/Accelerate/vImage/PixelBuffer/convert(to:)-674t9) Converts the contents of the unsigned 16-bit-per-channel, 4-channel interleaved pixel buffer to 32-bit-per-channel format. [`func convert(to: vImage.PixelBuffer)`](/documentation/Accelerate/vImage/PixelBuffer/convert(to:)-8ljhz) Converts the contents of the floating-point 16-bit-per-channel, 4-channel interleaved pixel buffer to 32-bit-per-channel format. ### Conversion from 32-bit to 8-bit [`func convert(to: vImage.PixelBuffer)`](/documentation/Accelerate/vImage/PixelBuffer/convert(to:)-1ka0r) Converts the contents of the 32-bit planar pixel buffer to 8-bit planar format. [`func convert(to: vImage.PixelBuffer)`](/documentation/Accelerate/vImage/PixelBuffer/convert(to:)-69qa2) Converts the contents of the 32-bit-per-channel, 3-channel interleaved pixel buffer to 8-bit-per-channel format. [`func convert(to: vImage.PixelBuffer)`](/documentation/Accelerate/vImage/PixelBuffer/convert(to:)-24xu0) Converts the contents of the 32-bit-per-channel, 4-channel interleaved pixel buffer to 8-bit-per-channel format. ### Conversion from 32-bit to 16-bit [`func convert(to: vImage.PixelBuffer)`](/documentation/Accelerate/vImage/PixelBuffer/convert(to:)-2bc8n) Converts the contents of the 32-bit planar pixel buffer to floating-point 16-bit planar format. [`func convert(to: vImage.PixelBuffer)`](/documentation/Accelerate/vImage/PixelBuffer/convert(to:)-56zhe) Converts the contents of the 32-bit-per-channel, 2-channel interleaved pixel buffer to floating-point 16-bit-per-channel format. [`func convert(to: vImage.PixelBuffer)`](/documentation/Accelerate/vImage/PixelBuffer/convert(to:)-1132q) Converts the contents of the 32-bit-per-channel, 4-channel interleaved pixel buffer to floating-point 16-bit-per-channel format. [`func convert(to: vImage.PixelBuffer)`](/documentation/Accelerate/vImage/PixelBuffer/convert(to:)-2dbbo) Converts the contents of the 32-bit-per-channel, 4-channel interleaved pixel buffer to unsigned 16-bit-per-channel format. ### Conversion from four channels to three channels [`func convert(to: vImage.PixelBuffer, channelOrdering: vImage.ChannelOrdering)`](/documentation/Accelerate/vImage/PixelBuffer/convert(to:channelOrdering:)-1nll2) Converts the 32-bit-per-channel RGBA or ARGB pixel buffer to RGB. [`func convert(to: vImage.PixelBuffer, channelOrdering: vImage.ChannelOrdering)`](/documentation/Accelerate/vImage/PixelBuffer/convert(to:channelOrdering:)-9h53) Converts the 8-bit-per-channel RGBA or ARGB pixel buffer to RGB. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)